Home / 81,725.24-112,792.20-45,918.02

Finding the Fourth Proportional to 81,725.24, 112,792.20 and 45,918.02

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Solution

The fourth proportional to 81,725.24, 112,792.20 and 45,918.02 is: 63,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,725.24 : 112,792.20 = 45,918.02 : x
  2. Step 2: Convert to fraction form
    81,725.24/112,792.20 = 45,918.02/x
  3. Step 3: Cross multiply
    81,725.24x = 112,792.20 × 45,918.02
  4. Step 4: Simplify right side
    81,725.24x = 5,179,194,495.44
  5. Step 5: Solve for x
    x = 5,179,194,495.44/81,725.24
  6. Step 6: Final answer
    x = 63,373.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.